Science Quiz 33

List I

1. Cracking
2. Smelting

III. Hydrogenation

1. Vulcanization

List II

1. A) Rubber
2. B) Petroleum
3. C) Copper
4. D) Edible fats

I. Drinking. 
II.Washing clothes with soap.
III. Use in boilers. 
IV. Irrigating crops.

I. Filament wire is not uniform. 
II. Bulb cannot be evacuated completely.
III. Wires supporting the filament melt at high temperatures.

List I

1. Diamond
2. Marble

III. Sand

1. Ruby

List II

1. A) Calcium
2. B) Silicon
3. C) Aluminium
4. D) Carbon